Ewing, John, 1732-1802

Presbyterian minister and professor of natural philosophy at the University of Pennsylvania. A vice-president of the American Philosophical Society, he contributed articles on astronomy to their Transactions. Ewing served on commissions with D. Rittenhouse to settle boundary disputes. The 1784 notebook contains astronomical observations made during an expedition in the summer of 1784 to settle such a dispute. Ewing's lectures on natural philosophy were published, posthumously, as "A Plain Elementary and Practical System of Natural Experimental Philosophy" (Philadelphia: Hopkins and Earle, 1809). Robert Patterson compiled these lectures, which included astronomy and chronology, and prefaced them with a biographical sketch of Ewing.

John Ewing of Philadelphia was a Presbyterian clergyman, scientist and professor. He paster of the Presbyterian Church in Philadelphia 1759-1802 and was Provost of the University of Pennsylvania 1779-1802.

Presbyterian clergyman and provost of the University of Pennsylvania. Ewing was appointed provost in 1779 and was also professor of natural philosophy.